If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:+ j/ ~9 O* I: g
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(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot 9 M) i/ G( Y& w# g- ]3 f7 M; y) I l- J7 ~. O) B( r& i
(2) To buy a round or square think-glass-disk with diameter or side length of 1 inch. If you can't find it, you can go 99 cents stores or dollartree to buy a large-clear-cloth-button at similar size., C, q2 ]: M" y
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(3) Prepare Epoxy well, spread the paste to one side of the glass or button, attach it to the crack-upper-end from inside of windshield. Wait for 24 hrs. It'll be as solid as a rock and permanently stop the crack extension.